RT9081A-13GQZA(2)

Voltage Dropout (Max):	0.25V @ 500mA
Supplier Device Package:	6-ZADFN (1.2x1.2)
Package / Case:	6-XFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Current Limit, Thermal Shutdown, UVLO
Control Features:	Enable
PSRR:	80dB (1kHz)
Current - Quiescent (Iq):	110µA
Current - Output:	500mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.3V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

RT9081A-13GQZ is a Linear Voltage Regulator (LVR) designed by Richtek Technology Corporation, a Taiwan-based company. The RT9081A-13GQZA(2) is a high accuracy low dropout Linear Voltage Regulator designed to provide power management in cost-level applications. It is designed to support a wide range of input voltage sources including 5.0V, 12V, and 24V. The RT9081A-13GQZA(2) is a compact, single-source linear voltage regulator, it provides a stable voltage output at up to 1A load current with a very low dropout voltage of only 0.7V. It supports a wide temperature range of -40°C to +125°C, and can operate from a supply voltage of 3V to 24V.

Application Field

The RT9081A-13GQZA(2) is a perfect choice for consumer and other cost driven applications needing high current, low dropout voltage and excellent accuracy with a wide input voltage range and operating temperature range. It is ideal for use in consumer, industrial and automotive application that require extended battery life, including consumer electronics such as portable PDAs, DVD players, satellite receivers, and chargers. The LVR can also be used in industrial products such as AC adapters, vending machines, and industrial automation applications. The automotive applications include car navigation systems, electronic switches, DC-DC converters, and car audio systems.

Working Principle

The RT9081A-13GQZA(2) is designed to be used as a low dropout linear voltage regulator to power core logic components, or to supply power to an auxiliary power supply circuit. The LVR offers a very low dropout voltage of only 0.7V and an exceptionally high output accuracy of ±1.0%. This low dropout voltage permits operation at low output voltage levels, making it ideal for use in battery-powered applications featuring digital circuit and other devices requiring precise regulation.The RT9081A-13GQZA(2) includes an internal voltage reference, error amplifier and pass transistor, which provide combined high accuracy and low dropout voltage performance. The linear regulator operates on the principle of negative-feedback electrical control, resulting in accurate and stable voltage output. The LVR achieves a very fast turn-on response, providing great protection against inrush current and extended battery life in portable applications.The RT9081A-13GQZA(2) also features a number of added safety features to protect against reverse current, over-temperature conditions, over-current and over-voltage conditions. It also provides thermal shutdown, ensuring safe operation of the device even in extreme conditions.

Conclusion

The RT9081A-13GQZA(2) is the perfect low dropout linear voltage regulator for cost effective applications needing high current, low drop-out voltage and excellent accuracy. It offers a wide input voltage range and temperature range, thermal shutdown, and a variety of safety features making it ideal for consumer, automotive and industrial applications that require extended battery life. The simple and efficient operation of the linear regulator makes it the perfect choice for extended battery life in portable devices.

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